TOPE = 100

def factorial(n):
	if n > 1:
		return factorial(n-1) * n
	return 1

if __name__ == '__main__':
	import os
	os.system('cls')

	suma = 0
	for x in str(factorial(TOPE)):
		suma = suma + int(x)

	print '\n\t', suma, '\n' 
